High / Low Projector Headlamps, LED lamps ... and more 1) High-low projector has obtained 32 countries patents of invention. 2) High-low projector has obtained the approval of E-MARK and DOT. SAE 3) Lens Diameter in 42mm is the smallest High-Low Projector in the world. 4) Halogen is cheaper than HID 5) new product is waterproof hi-low projector It can be used for auto as the fog lamps and headlamp for motorcycle.